after fan president hamid karzai said he won't sign it until after the country's elections from april. >>> the police department picking up pointers from usa today. according to usa today one in four are using a tactic known as tower dunk. >> that means they are tracking the ident and activity of thousands of cell phones, and at least two dozen are using a stingray, a mobile suitcase device used as a fake cell phone device to intercept calls. >>> safety improvements are coming to the railroad in the weak of last week's derail. . the new system will warn engineers of approaching speed reductions and will automatically apply an emergency brake in the speed is not lowered. >>> autopsy results are due in the death of a 16-year-old boy. officials now say first responders used every means possible to try and revive that boy. he went into cardiac arrest. the boy reportedly had an underlying medical condition. his family says he was clear to fly. >>> billy joel and shirley mcclain among those celebrated at kennedy honors. santana and opera serng marty no royo rounded out this lest of honorees